eclipse 由于应用程序签名不同，重新安装失败
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Re-installation failed due to different application signatures
提问by Quadrivium
Possible Duplicate:
Why does the app signature change in Android after a classpath change?
I started getting errors in my Eclipse Workspace for several but not all of my projects. I noticed is was the oldest projects. I found help for the error, and built my own debug.keystore and changed the java build path to that folder.
我的 Eclipse 工作区开始出现一些错误，但不是所有项目。我注意到是最古老的项目。我找到了该错误的帮助，并构建了我自己的 debug.keystore 并将 java 构建路径更改为该文件夹。
Now when I try to run any of the projects in an emulator I get this error:
现在，当我尝试在模拟器中运行任何项目时，出现此错误：
[2011-04-19 10:11:20 - enga] Re-installation failed due to different application signatures.
[2011-04-19 10:11:20 - enga] You must perform a full uninstall of the application. WARNING: This will remove the application data!
[2011-04-19 10:11:20 - enga] Please execute 'adb uninstall com.engatest' in a shell.
[2011-04-19 10:11:20 - enga] Launch canceled!
I tried removing the application from the menu in the emulator, got through the motions and drag it to the trash but it doesn't get removed.
我尝试从模拟器的菜单中删除该应用程序，完成动作并将其拖到垃圾箱中，但它没有被删除。
I tried running in terminal: adb uninstall com.dwclogic.engatestbut the command wasn't found, adb probably not setup globally on my mac. I am new to the Mac and am unsure how to get the execute path for this fixed but that's an whole other issue.
我尝试在终端中运行：adb uninstall com.dwclogic.engatest但未找到该命令，adb 可能未在我的 mac 上全局设置。我是 Mac 的新手，不确定如何获得此修复的执行路径，但这是另一个问题。
where do I try running this command? Is there any other ways to fix this problem.
我在哪里尝试运行此命令？有没有其他方法可以解决这个问题。
回答by rocky3000
- You can remove an app in your emulator via Settings->Applications->manage Applications. There you can see a list of all installed apps. If you then click on the app you want to uninstall, a screen opens, with an uninstall option.
- A second option for uninstall is the use of "adb uninstall". adb is a command line tool which is located under the Android SDK folder. You can find it there in a folder called "platform-tools". So you have to navigation to your SDK installation and use a terminal window to run adb there.
- 您可以通过设置->应用程序->管理应用程序删除模拟器中的应用程序。在那里您可以看到所有已安装应用程序的列表。如果您随后单击要卸载的应用程序，则会打开一个带有卸载选项的屏幕。
- 卸载的第二个选项是使用“adb uninstall”。adb 是一个命令行工具，位于 Android SDK 文件夹下。您可以在名为“platform-tools”的文件夹中找到它。所以你必须导航到你的 SDK 安装并使用终端窗口在那里运行 adb。
Dragging an icon onto the trash does not uninstall an app. It only removes it's icon from the home screen.
将图标拖到垃圾箱上不会卸载应用程序。它只会从主屏幕上删除它的图标。
回答by Yahyaotaif
I get that error when my physical device is hooked up in my PC's USB port. If yours is plugged in try to unplug it
当我的物理设备连接到我的 PC 的 USB 端口时，我收到该错误。如果您的插头已插入，请尝试将其拔下
回答by Faakhir
Go to Settings -> Application -> Manage Application -> "tab on your application" -> uninstall
转到设置 -> 应用程序 -> 管理应用程序 -> “应用程序选项卡” -> 卸载
Run your application from Eclipse again and it'll definitely work for you :)
再次从 Eclipse 运行您的应用程序，它肯定对您有用:)
